Floor Joist Loading Table

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Floor joist loading table.

The span table for a 30 psf live load 10psf dead load floor indicates a required fb value of 1 315 and a minimum e value of 1 800 000. Next consult a span table to cross reference the spacing and span to find the required fb value for that table s load limits. 1 ft 0 3048 m. 2 grade of douglas fir are indicated below.

The table excerpt above is simply a sample and may not be valid for your region. Joist span table use these tables to determine floor joist spans based on grade of lumber size of joist floor joist spacing and a live load of 30 lbs ft 2 or 40 lbs ft 2 these tables can also be used to determine deck joist span. Looking at this table you will see there is a choice in the size of floor joist 2 x 6 2 x 8 2 x 10 or 2 x 12 and there is a choice in the joist spacing 12 16 or 14. Also available for the android os.

It is simple to use yet flexible enough to analyze a variety of common applications. 1 psf lb f ft 2 47 88 n m 2. Design information for all joists tji joist floor framing 24 rim board selection and installation 25 floor details 26 27 roof framing 28 roof details 29 30 cut length calculation 31 material weights and. Floor joist span use this table to determine the maximum lengths of floor joists based on species of lumber joist spacing and joist size.

Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters. Maximum floor joist span for no. Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12. In the example the joists have a spacing of 16 inches and a span of 11 feet 2 inches.

Span calculator for wood joists and rafters also available for the android os. The user enters the member geometry adds loads holes and other relevant data and then selects a product for analysis. Roof rafter span use this table to determine the maximum lengths of roof rafters based on species and grade of lumber spacing dimensions load and slope. Bc calc performs engineering analysis to help our customers size beams joists columns studs and tall walls for their building projects.

Dead load weight of structure and fixed loads 10 lbs ft 2. Live load is weight of furniture wind snow and more. Floor joist span tables for various sizes and species of wood.